Lesson eLearning

What is the next number in the pattern 5, 11, 23, 47, ___?

hard MCQ 3 marks Class 4 · Mathematics · Play with Patterns
  1. 90
  2. 95
  3. 100
  4. 105
Answer
95

The correct answer is 95 — Thus the next number is 95.

Step-by-step solution

  1. Compute the differences: , , .
  2. The differences double each time: , .
  3. Predict the next difference: .
  4. Add it to the last term: .
  5. Thus the next number is 95.
Common mistake: Assuming a linear increase instead of doubling

Concept tested: Doubling differences

Published · How this solution was prepared and checked

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